<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>无序列表-导航</title>
</head>
<body>
<ul id="nav">

</ul>

<select id="slt">
</select>
</body>
<script src="../../mock/items.js"></script>
<script src="../../js/ex-1.js"></script>

</html>